Printing output according to letter chosen problem

Instead of using 1,2,3 I want the user to select from A,B,C but I'm having some problem finding the right solution. I have tried 'A' or '65' which is A in ASCII but I have no luck. How can I get the user to select a letter and then display the appropriate output?

Code:

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#include <stdio.h>      //Handles the keyboard input and screen output
#include <process.h>  //Handles DOS system commands ("cls", "pause")

void(main)
{
  //This part declares variables used by the program
  int reply=0;        //Users reply
  int i, items = 'C';  //Loop counter, loop limit
  //This part displays the menu items
  system("cls");
  printf("Welcome to MENU program!");
  while (reply < items)
  {
        printf("\n\nHere are menu options that this program offers:");
        //This part displays menu options
        for (i = 'A'; i < items; i++)
        {
                printf ("\n%d. Option number %d", i, i);
        }
        printf ("\n%d. (or %d, ..., etc.) EXIT program.", items, (items+1));
        printf ("\n");      // Changes the line
        printf("\nTo terminate choose the option %d, or higher!", items);
        printf("\nPlease choose the item to run (e.g. 1, ..., %d) ", items);
        scanf("%d", &reply);  // Inputs your reply
        printf("Your choice was option number %d", reply); //Option
        //Completes the processing for subsequent options
        if (reply == 'A')
        {
                //Here complete actions for menu option number 1
                printf ("\nOption number 1 is executed here!");
        }
        if (reply == 'B')
        {
                //Here complete actions for menu option number 2
                printf ("\nOption number 2 is executed here!");
        }
        // ... (continue with options)
        if (reply >= items)
        {
                //This completes actions for the option PROGRAM EXIT
                printf (" which terminates this program!");
        }
        if (reply < 'A')
        {
          //Here is the "wrong reply" error message
          printf ("\nChoice %d is out of range (retype 1, ..., %d).",
                  reply, items);
        }
  }

  //The final displays
  printf ("\n\nThank you for using this program. Good bye!");
  printf ("\n");          // Changes the line
  system("pause");    // DOS "Pause" command (for user to look at results)
}

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Quote:

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Originally Posted by Guti14

Instead of using 1,2,3 I want the user to select from A,B,C but I'm having some problem finding the right solution. I have tried 'A' or '65' which is A in ASCII but I have no luck. How can I get the user to select a letter and then display the appropriate output?

Code:

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        scanf("%d", &reply);  // Inputs your reply

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'reply' should be an int, and you should should use "%c".

But you should not use scanf() that is a difficult function to use correctly.

For many reasons (read the FAQ), better to use an fgets() based function.

Code:

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<...>
  {
      char s[3];

      fgets (s, sizeof s, stdin);

      reply = *s;
  }

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One more thing

Code:

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void(main)

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should be

Code:

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int main(void)
{
/*your code */
return 0;
}

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Cheers guys, but neither advice has gotten me closer to completing the program I think. :(

Quote:

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Originally Posted by Guti14

Instead of using 1,2,3 I want the user to select from A,B,C but I'm having some problem finding the right solution. I have tried 'A' or '65' which is A in ASCII but I have no luck. How can I get the user to select a letter and then display the appropriate output?

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Use "%c" with printf() too.

why not a switch statement?

Code:

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char reply = '\0';
 
 while(reply=='\0')
 {
        ... //accept input here
 
        switch(reply)
        case 'a':
                ... //if 'a' do stuff
                break;
 
        case 'b':
                ... //if 'b' do stuff
                break;
 
        case 'c':
                ... //if 'c' do stuff
                break;
 
        default:
                reply = '\0'; //if input is not a,b or c then ask for input again
                break;
 }

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